WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

RE: [Xen-devel] pinning dom0 cpu

To: "Diwaker Gupta" <diwakergupta@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] pinning dom0 cpu
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Thu, 27 Jan 2005 23:14:06 -0000
Delivery-date: Fri, 28 Jan 2005 05:22:12 +0000
Envelope-to: xen+James.Bulpin@xxxxxxxxxxxx
List-archive: <http://sourceforge.net/mailarchive/forum.php?forum=xen-devel>
List-help: <mailto:xen-devel-request@lists.sourceforge.net?subject=help>
List-id: List for Xen developers <xen-devel.lists.sourceforge.net>
List-post: <mailto:xen-devel@lists.sourceforge.net>
List-subscribe: <https://lists.sourceforge.net/lists/listinfo/xen-devel>, <mailto:xen-devel-request@lists.sourceforge.net?subject=subscribe>
List-unsubscribe: <https://lists.sourceforge.net/lists/listinfo/xen-devel>, <mailto:xen-devel-request@lists.sourceforge.net?subject=unsubscribe>
Sender: xen-devel-admin@xxxxxxxxxxxxxxxxxxxxx
Thread-index: AcUEuLn0Qgh0mQbZR7eNSZdP0YV22QADPB6Q
Thread-topic: [Xen-devel] pinning dom0 cpu
> I'm running Xen on an SMP machine. Couple of things:
> 
> a) is dom0 pinned to a particular CPU? if so which? can I 
> control the choice? 

Yes, use xm pincpu.
 
> b) with the 2.6.10 Xenolinux kernel, cat /proc/cpuinfo shows only a
> single CPU on my SMP machine. Is this a known problem/behavior?

With Xen 2.x each individual domain can only be uniprocessor. The
unstable tree contains prototype SMP support.  

> c) if I understand correctly, the BVT scheduler parameters are CPU
> specific -- they don't aggregate over the machine. So if I assign some
> weights to domains, they will work properly if both domains are pinned
> to the same CPU. Is that correct?

Yes, as it stands.

Ian


-------------------------------------------------------
This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
Tool for open source databases. Create drag-&-drop reports. Save time
by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
Download a FREE copy at http://www.intelliview.com/go/osdn_nl
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel

<Prev in Thread] Current Thread [Next in Thread>